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        <h2>
          <span class="refentrytitle">lposcil</span>
        </h2>
        <p>lposcil — 
      Read sampled sound from a table with looping and high precision.
    </p>
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      <div class="refsect1">
        <a id="idp121337744"></a>
        <h2>Description</h2>
        <p>
      Read sampled sound (mono or stereo) from a table, with looping, and high precision.
    </p>
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      <div class="refsect1">
        <a id="idp121411600"></a>
        <h2>Syntax</h2>
        <pre class="synopsis">ares <span class="command"><strong>lposcil</strong></span> kamp, kfreqratio, kloop, kend, ifn [, iphs]</pre>
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      <div class="refsect1">
        <a id="idp121413840"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>ifn</em></span> -- function table number
    </p>
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      <div class="refsect1">
        <a id="idp121415456"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>kamp</em></span> -- amplitude
    </p>
        <p>
      <span class="emphasis"><em>kfreqratio</em></span> -- multiply factor of table frequency (for example: 1 = original frequency, 1.5 = a fifth up , .5 = an octave down)
    </p>
        <p>
      <span class="emphasis"><em>kloop</em></span> -- start loop point (in samples)
    </p>
        <p>
      <span class="emphasis"><em>kend</em></span> -- end loop point (in samples)
    </p>
        <p>
      <span class="emphasis"><em>lposcil</em></span> (looping precise oscillator) allows varying at k-rate, the starting and ending point of a sample contained in a table (<a class="link" href="GEN01.html" title="GEN01"><em class="citetitle">GEN01</em></a>). This can be useful when reading a sampled loop of a wavetable, where repeat speed can be varied during the performance.
    </p>
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        <a id="idp121421744"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the lposcil opcode. It uses the file <a class="ulink" href="examples/lposcil.csd" target="_top"><em class="citetitle">lposcil.csd</em></a>.

      </p>
        <div class="example">
          <a id="idp121423520"></a>
          <p class="title">
            <strong>Example 453. Example of the lposcil opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac      <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o lposcil.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="oblock">instr</span> 1

kcps  <span class="op">=</span> 1.5	<span class="comment">; a fifth up</span>
kloop <span class="op">=</span> 0	<span class="comment">; loop start time in samples</span>
kend  <span class="op">=</span> 45000	<span class="comment">; loop end time in samples</span>

asig <span class="opc">lposcil</span> 1, kcps, kloop, kend, 1
     <span class="opc">outs</span> asig, asig

<span class="oblock">endin</span>
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="comment">; Its table size is deferred,</span>
<span class="comment">; and format taken from the soundfile header.</span>
<span class="stamnt">f</span> 1 0 0 1 "beats.wav" 0 0 0

<span class="comment">; Play Instrument #1 for 6 seconds.</span>
<span class="comment">; This will loop the drum pattern several times.</span>
<span class="stamnt">i</span> 1 0 6

<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp121427808"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="lposcil3.html" title="lposcil3"><em class="citetitle">lposcil3</em></a>,
      <a class="link" href="lposcila.html" title="lposcila"><em class="citetitle">lposcila</em></a>,
      <a class="link" href="lposcilsa.html" title="lposcilsa"><em class="citetitle">lposcilsa</em></a>,
      <a class="link" href="lposcilsa2.html" title="lposcilsa2"><em class="citetitle">lposcilsa2</em></a>
    </p>
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      <div class="refsect1">
        <a id="idp121432736"></a>
        <h2>Credits</h2>
        <p>
      </p>
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          <tr>
            <td>Author: Gabriel Maldonado</td>
          </tr>
          <tr>
            <td>Italy</td>
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        <p>
    </p>
        <p>New in Csound version 3.52</p>
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